diff options
| author | Nithya Balachandran <nbalacha@redhat.com> | 2014-11-01 22:16:32 +0530 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2014-11-03 03:40:14 -0800 |
| commit | 0da374020c17256141fb3971ae792b62097d72df (patch) | |
| tree | bb5b7fc28045a0e6fbfbb15711a8860652591e04 /xlators/cluster | |
| parent | adfccb57565ff1af0bbb79efc3cf489c55509aba (diff) | |
Cluster/DHT : Fixed crash due to null deref
A lookup on a linkto file whose trusted.glusterfs.dht.linkto
xattr points to a subvol that is not part of the volume
can cause the brick process to segfault due to a null dereference.
Modified to check for a non-null value before attempting to access
the variable.
Change-Id: Ie8f9df058f842cfc0c2b52a8f147e557677386fa
BUG: 1159571
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/9034
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: venkatesh somyajulu <vsomyaju@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/cluster')
| -rw-r--r-- | xlators/cluster/dht/src/dht-common.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c index b01ac0d0738..82b527e9141 100644 --- a/xlators/cluster/dht/src/dht-common.c +++ b/xlators/cluster/dht/src/dht-common.c @@ -1239,8 +1239,9 @@ dht_lookup_everywhere_done (call_frame_t *frame, xlator_t *this) "subvolume. But linkto points to " "different cached subvolume (%s) " "path %s", - local->skip_unlink.hash_links_to->name, - local->loc.path); + (local->skip_unlink.hash_links_to ? + local->skip_unlink.hash_links_to->name : + " <nil>"), local->loc.path); if (local->skip_unlink.opend_fd_count == 0) { |